Home / 3,304.80-4,561.38-1,979.28

Finding the Fourth Proportional to 3,304.80, 4,561.38 and 1,979.28

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Solution

The fourth proportional to 3,304.80, 4,561.38 and 1,979.28 is: 2,731.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,304.80 : 4,561.38 = 1,979.28 : x
  2. Step 2: Convert to fraction form
    3,304.80/4,561.38 = 1,979.28/x
  3. Step 3: Cross multiply
    3,304.80x = 4,561.38 × 1,979.28
  4. Step 4: Simplify right side
    3,304.80x = 9,028,248.21
  5. Step 5: Solve for x
    x = 9,028,248.21/3,304.80
  6. Step 6: Final answer
    x = 2,731.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.